When is Earth Day celebrated every year?

In which year was Earth Day first celebrated?

Earth Day was originally focused on which country?

Which of the following is a common Earth Day activity?

What is the symbol often associated with Earth Day?

Which environmental issue is often highlighted on Earth Day?

Which gas is a major contributor to global warming?

How often is Earth Day celebrated?

What color is most associated with Earth Day?

What kind of bags are more eco-friendly?